Happened to me too, on a roller coaster funny enough.
I was at Busch Gardens in VA, riding their new coaster (Pantheon [1] for those curious). It's a fast, launched coaster and I guess the way I was sitting with the restraints hit the power button of my pixel 5 times and toggled the emergency call feature. I felt my smart watch vibrating with the ongoing call as we went up the top hat spike of the ride. Thankfully I was able to stop the call from my wrist before it connected. But that was the last time I didn't turn my phone off or put it in a locker before I got on a ride.
I was at Busch Gardens in VA, riding their new coaster (Pantheon [1] for those curious). It's a fast, launched coaster and I guess the way I was sitting with the restraints hit the power button of my pixel 5 times and toggled the emergency call feature. I felt my smart watch vibrating with the ongoing call as we went up the top hat spike of the ride. Thankfully I was able to stop the call from my wrist before it connected. But that was the last time I didn't turn my phone off or put it in a locker before I got on a ride.
[1] https://rcdb.com/16812.htm